Galerkin method of smooth sub-domain for efficiently analyzing structural stress

Galerkin method of smooth sub-domain for efficiently analyzing structural stress

  • CN 105,243,282 A
  • Filed: 11/03/2015
  • Published: 01/13/2016
  • Est. Priority Date: 11/03/2015
  • Status: Active Application
First Claim
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1. a Galerkin method for the smooth subdomain of efficient analysis structural stress, it is characterized in that, the method comprises the following steps:

  • the first step, and whole Problem Areas is divided into multiple subdomain, and in each subdomain, distribution is without the node of link information;

    Second step, calculates each subdomain stiffness matrix and force vector;

    3rd step, reduction subdomain degree of freedom;

    4th step, obtains the overall discrete equation of reduction Problem Areas;

    5th step, obtains the degree of freedom of all nodes of Problem Areas according to the degree of freedom on a node basis after reduction;

    6th step, according to the shift value of all nodes in known Problem Areas, draws the structural stress of relative position.

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